Electrical endorsing machine



Jan. 2, 1940. w. F. MULLER ELECTRICAL ENDORSING MACHINE 2 SheetS Sheet 1 Filed May 2, 1958 ATTORN EY Jan. 2, 1940. w. F. MULLER ELECTRICAL ENDORS'ING MACHINE I 2 Sheets-Sheet 2 Filed May 2, 1938 ATTORNEY Patented Jan. 2, 1940 UNITED STATE-S lwilliam F Mullenifirooklyn,@NQ-1.,assignor to William A. Force, III,-Neyv;ork,;N.,.

Application May 2, 1938, Serial N -2 a X 1 Claim- (01. 101-318) The object of the present invention is to provide amachine for stamping endorsements upon checks, commercial paper, and the like.

A specific object of the invention is to provide a novel type of switch mechanism adapted to be actuated by the paper as it is moved under a printing carriage, whereupon the carriage descends, stamps-the endorsement, and is immediately released through breaking of the circuit.

The invention will be describedwith reference to the accompanying drawings, in which Fig. 1 is a view in side elevation of an embodiment of the invention, partly broken away.

Fig. 2 is a view similar to Fig. 1, showing a side plate of the machine removed so as to'expose the elements of the switchmechanism, the view showing the parts prior to closing the switch; .Fig. 3 is a view similar to Fig. 2 showing the switch closed, the switch-mechanism having been thrown by the placing of a paper sheet in the printing carriage.

Fig. 4 is a view similar to Fig. 3, showing the elements in the position at the end of a downward movement of the printing carriage, the switch being broken preliminaryv to rise of the printing carriage. I

In the drawings, I have shown'casing Ienclosing a solenoid mechanism including a field 2 and a core rod 3. Resting upon a flat surface :1 are a plurality of springs 5 which engage a plate 6 connected to the top of the solenoid core, the latter projecting above surface 4, the springs acting to normally maintain the core rod in uppermost position. I

The solenoid core rod carries a printing carriage comprising the holders I and 8 for a ribbon spool, the ribbon being indicated at 9 and at It I have indicated a ratchet wheel engaged by a pawl IIcarried by a lever I2 having connection by link I3 with a fixed arm I l secured to casing I. In this manner, a ribbon spool may be rotated by intermittent motion as the printing carriage descends and rises.

At I5, I have indicated a printing frame which will carry a printing plate I4, the printing frame are certain-switch and switch operating elements now to be described.

A contact member II and a contact member I8, pivoted respectively at I9 and I9w, are electrically connected to a source of electrical energy and are connected by wires illand ZI with the solenoid field '2. I Contact member I1 is spring yielding, being carried by an arm engaged. by inner springs 22. Contact member I8 is carried by an arm pivotallyconneoted at 23 with toggle links 24 and 23, toggle link 25. being pivoted at 26 to a rock lever 2?. The rock lever 21 is pivotedat 28 to a swinging carrying arm 29 and is pivoted at 39 to a swinging carrying arm 3!.

Rock lever 21 has depending therefrom alight arm 32 which lies in the path of the paper to and 2 wherein theco-ntact members I! and I8 are separated- When a sheet is moved across the surface of the platen toward the supporting arm forcasing I, the sheet will strike arm 32 and will move it rearwardly, the arm in such manner raising rock arm 21 on pivotal point 30 as a fulcrum and the toggle links, being straight, will be moved upwardly to impart a swinging movement to contact member I8 to bring its point against the point of contact member I1 and establishing the circuit. I

When the circuit through the solenoid field is established, as above set forth, core rod 3 will be moved downwardly against the action of springs 5, carrying with it the printing carriage and the paper will be stamped.

" The switch release mechanism is as follows:

Connected at 36, to the printing carriage is switch release arm 31, the arm 31 at its upper end being connected to a swinging arm 38 pivoted at 39 upon wall Ix of the casing I. Secured to arm 31 is a finger AI which normally lies above piv-' oted stud 42 of the toggle. When the printing carriage is moved downward from the position illustrated in Fig. 3 the position illustrated-in Fig.

4, finger 4| strikes, stud 42 and breaks thetoggle, thus moving the arm of switch member I8 to the position illustrated in Fig. 4.

Inasmuch as the action of the downward throw of the printing carriage is a short and rapid stroke immediately followed by an upward move- -ment which releases the paper sheet, enabling it to be pushed rearwardly out of range of arm 32, the latter and lever 21 drops downwardly through gravity and restores the toggle to a straight position as shown in Fig. 2.

Having described my invention, what I claim, and desire to secure by Letters Patent, is as follows, it being understood that various modificaing position and electrical means for imparting reciprocation thereto supported by said standard,

of a circuit, and circuit making and breaking means comprising a pair of contacts normally held in spaced relation, one of said contacts being pivotally mounted, a pair of toggle links connected to said pivotally mounted contact, an actuating lever pivoted to the standard and pivotally connected to said pair of toggle links, a firmer lying in front of the printing carriage and adapted, upon movement, to actuate the lever andtoggle links to close the contacts, and a cam device operatively connected to the carriage and adapted to strike the toggle links and break the same for separating the contacts in the movement: of" the.- carriage toward final printing position.

WILLIAM F. MULLER. 

